Pith Number

pith:U2WYGXFG

pith:2012:U2WYGXFGT4LANELUFJSDJV2FHF

not attested not anchored not stored refs pending

PSDF: Particle Stream Data Format for N-Body Simulations

Jeff Ames, Junichiro Makino, Keigo Nitadori, Koichi Nakamura, Piet Hut, Simon Portegies Zwart, Steve McMillan, Takayuki Muranushi, Will M. Farr

arxiv:1201.1694 v1 · 2012-01-09 · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U2WYGXFGT4LANELUFJSDJV2FHF}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:58:54.241935Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6ad835ca69f160691742a6434d74539485378fa366df88d063c4360316368a2

Aliases

arxiv: 1201.1694 · arxiv_version: 1201.1694v1 · doi: 10.48550/arxiv.1201.1694 · pith_short_12: U2WYGXFGT4LA · pith_short_16: U2WYGXFGT4LANELU · pith_short_8: U2WYGXFG

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/U2WYGXFGT4LANELUFJSDJV2FHF \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: a6ad835ca69f160691742a6434d74539485378fa366df88d063c4360316368a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f4e50a700131a91f33608c8b36529f481e38999674b7fa6396f6904edb8778b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2012-01-09T06:19:38Z",
    "title_canon_sha256": "5a1d84da0a887ff0322d020c2d882b59888b1524fdb01c056ec3cbeb5f7083dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.1694",
    "kind": "arxiv",
    "version": 1
  }
}